Teenage detective Nancy Drew uses her courage and powers of deduction to solve the mysterious happenings in an old stone mansion. After receiving a call from her friend Helen Corning, Nancy agrees to help solve a baffling mystery. Helen's Aunt Rosemary has been living with her mother at the old family mansion, and they have noticed many strange things. They have heard music, thumps, and creaking noises at night, and seen eerie shadows on the walls....

Nancy Drew solves her first mystery when the accidental rescue of a little girl who lives with her two great-aunts leads to an adventurous search for a missing will.

Nancy receives a letter meant for a British heiress who has the same name and, in her attempts to contact the other young woman, faces danger from a man who operates a Lonely Hearts Club mail fraud.

When a puppy who is being trained as a police dog goes missing, third-grader Judy forms a detective agency to solve the mystery, imitating her literary heroine, Nancy Drew.

Nancy arrives in Phoenix, Arizona, eagerly looking forward to a fun-filled vacation at Shadow Ranch but finds herself embroiled in a baffling mystery involving a phantom horse and buried treasure. Local people believe that the ghostly animal is carrying out the curse of Dirk Valentine, the romantic outlaw who was killed many years ago at Shadow Ranch, where he had gone to fulfill a promise to his sweetheart. Suspecting that a treasure hidden by Valentine...

At a doll collector's request for help, a young sleuth searches for an old album, a lost doll, and a missing gypsy violinist.

Asked to locate a stolen necklace of unusual value, Nancy soon discovers that strange and dangerous people are responsible for the theft.

At Misty Lake Nancy and her friends investigate two mysteries: a pop singer whose record company may be cheating him of royalties, and a missing treasure.

When Nancy, Bess, and George work as camp counselors for a week, Nancy investigates a mystery surrounding the drowning death of a camper years ago in the lake.

Nancy Drew travels to New York to unravel the mystery surrounding her aunt's neighbors and the sacred fire dragon. Juvenile fiction.